I saw this video for cleaning the 335d Injectors:
I've read though that our injectors can be taken apart like that, that it will screw them up? I have the ultrasonic cleaner though and could do this. But I don't wanna risk screwing them up if you can just do that as easy as shown and them work right when reassembled.
My other option is to send here:
https://injector-rehab.com/?gclid=Cj...8aApbjEALw_wcB
they say the specialize in BMW injectors.
thoughts on these? I'm worried about how dirty they are and think i definitely wanna clean them at the least.